Yes:

================
var nav = new OpenLayers.Control.NavigationHistory();

            map.addControl(nav);
            nav.activate();

            var buttonPrevious = new Ext.Toolbar.Button({
                iconCls: 'back',
                tooltip: 'Previous view',
                disabled: true,
                handler: nav.previous.trigger
            });

            var buttonNext = new Ext.Toolbar.Button({
                iconCls: 'next',
                tooltip: 'Next view',
                disabled: true,
                handler: nav.next.trigger
            });
=========================


I suspect you have to size your icons appropriately before hand and
configure your relevant CSS snippet:
=========================
.next {
          background-image:url(mfbase/mapfish/img/resultset_next.png)
!important;
          height:20px !important;
          width:20px !important;
        }
        .back {
          background-image:url(mfbase/mapfish/img/resultset_previous.png)
!important;
          height:20px !important;
          width:20px !important;
        }
=========================

That's about it.

Alex


On Mon, Sep 6, 2010 at 5:45 PM, Phil Scadden <[email protected]> wrote:
>  Has anyone ever achieved this? I tried with actions but cant get the
> icon to be correct size and portion of the image.
>
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